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Seasonal Variations and Effect of Radiation on Soil Fertility and Enzyme Activity in Opencast Coal Mine

Author Affiliations

  • 1 Indian School of Mines, Dhanbad, 826004, Jharkhand, INDIA

Int. Res. J. Environment Sci., Volume 4, Issue (7), Pages 17-23, July,22 (2015)

Abstract

Jharia coalfield in Jharkhand, India, is also known for the largest coalfields in India. The enzyme activities play an important role in soil fertility and productivity. It indicates extremely sensitive changes in the soil health. The need for the survey of radiation effect in these sites is important for vegetation and health assessment of those people who are staying near these areas. Monitoring and sampling of soil were done in seven sampling locations of Bastacola, Rajapura, Lodna and Kustor from August 2009 to April 2010. All sampling locations lie between latitude 23 39' to 23 48' N and longitude86 11' to 86 27' E. Variations of physico-chemical parameters were studied in summer and winter season. Effect of radiation on two types of enzymes activity like dehydrogenase (DHA) and catalase (CTA) were studied. A two-way analysis of variance (ANOVA) showed that twelve soil quality parameters had a significant difference (p 0.05) in two seasons. Enzyme activity in fire zones was found zero in spite of having high N, P, K and organic carbon. While grassland and natural vegetation showed high enzyme activity due to lesser radiation effect. The damage of microorganisms was increased due to the increase of Gamma rays. Available N, P, K and organic carbon found maximum with respect to Bastacola. Effect of Gamma radiation was found to be strongly negatively correlated with dehydrogenase activity (DHA) and catalase activity (CTA).

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